NoFrillz
04-06-2003, 05:07 AM
Hey I have some holes in my airbox lid with a breathable foam covering them, I jetted my quad for the air box lid off (Dynojet kit) but the quad backfires when you let off the throttle quickly from high revs, and it hesitates when you hit the throttle hard for acceleration. Is it too lean, too rich? and what can I do. Thanks